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Message-ID: <20250918085406.2049559-5-alexander.wilhelm@westermo.com>
Date: Thu, 18 Sep 2025 10:53:59 +0200
From: Alexander Wilhelm <alexander.wilhelm@...termo.com>
To: Jeff Johnson <jjohnson@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-wireless@...r.kernel.org, ath12k@...ts.infradead.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: [PATCH v3 4/4] wifi: ath12k: enforce CPU-endian format for all QMI
Due to internal endianness handling within the QMI subsystem, all QMI
requests and responses must now be provided in CPU byte order. Replace all
QMI-related data types with CPU-endian types and add the necessary
conversions to ensure correct interpretation across architectures.
Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Alexander Wilhelm <alexander.wilhelm@...termo.com>
---
drivers/net/wireless/ath/ath12k/qmi.c | 24 ++++++++++++++++--------
drivers/net/wireless/ath/ath12k/qmi.h | 16 ++++++++--------
2 files changed, 24 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c
index 7c611a1fd6d0..36325e62aa24 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.c
+++ b/drivers/net/wireless/ath/ath12k/qmi.c
@@ -3307,20 +3307,28 @@ static int ath12k_qmi_wlanfw_wlan_cfg_send(struct ath12k_base *ab)
/* This is number of CE configs */
req->tgt_cfg_len = ab->qmi.ce_cfg.tgt_ce_len;
for (pipe_num = 0; pipe_num < req->tgt_cfg_len ; pipe_num++) {
- req->tgt_cfg[pipe_num].pipe_num = ce_cfg[pipe_num].pipenum;
- req->tgt_cfg[pipe_num].pipe_dir = ce_cfg[pipe_num].pipedir;
- req->tgt_cfg[pipe_num].nentries = ce_cfg[pipe_num].nentries;
- req->tgt_cfg[pipe_num].nbytes_max = ce_cfg[pipe_num].nbytes_max;
- req->tgt_cfg[pipe_num].flags = ce_cfg[pipe_num].flags;
+ req->tgt_cfg[pipe_num].pipe_num =
+ __le32_to_cpu(ce_cfg[pipe_num].pipenum);
+ req->tgt_cfg[pipe_num].pipe_dir =
+ __le32_to_cpu(ce_cfg[pipe_num].pipedir);
+ req->tgt_cfg[pipe_num].nentries =
+ __le32_to_cpu(ce_cfg[pipe_num].nentries);
+ req->tgt_cfg[pipe_num].nbytes_max =
+ __le32_to_cpu(ce_cfg[pipe_num].nbytes_max);
+ req->tgt_cfg[pipe_num].flags =
+ __le32_to_cpu(ce_cfg[pipe_num].flags);
}
req->svc_cfg_valid = 1;
/* This is number of Service/CE configs */
req->svc_cfg_len = ab->qmi.ce_cfg.svc_to_ce_map_len;
for (pipe_num = 0; pipe_num < req->svc_cfg_len; pipe_num++) {
- req->svc_cfg[pipe_num].service_id = svc_cfg[pipe_num].service_id;
- req->svc_cfg[pipe_num].pipe_dir = svc_cfg[pipe_num].pipedir;
- req->svc_cfg[pipe_num].pipe_num = svc_cfg[pipe_num].pipenum;
+ req->svc_cfg[pipe_num].service_id =
+ __le32_to_cpu(svc_cfg[pipe_num].service_id);
+ req->svc_cfg[pipe_num].pipe_dir =
+ __le32_to_cpu(svc_cfg[pipe_num].pipedir);
+ req->svc_cfg[pipe_num].pipe_num =
+ __le32_to_cpu(svc_cfg[pipe_num].pipenum);
}
/* set shadow v3 configuration */
diff --git a/drivers/net/wireless/ath/ath12k/qmi.h b/drivers/net/wireless/ath/ath12k/qmi.h
index abdaade3b542..4767d9a2e309 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.h
+++ b/drivers/net/wireless/ath/ath12k/qmi.h
@@ -392,17 +392,17 @@ enum qmi_wlanfw_pipedir_enum_v01 {
};
struct qmi_wlanfw_ce_tgt_pipe_cfg_s_v01 {
- __le32 pipe_num;
- __le32 pipe_dir;
- __le32 nentries;
- __le32 nbytes_max;
- __le32 flags;
+ u32 pipe_num;
+ u32 pipe_dir;
+ u32 nentries;
+ u32 nbytes_max;
+ u32 flags;
};
struct qmi_wlanfw_ce_svc_pipe_cfg_s_v01 {
- __le32 service_id;
- __le32 pipe_dir;
- __le32 pipe_num;
+ u32 service_id;
+ u32 pipe_dir;
+ u32 pipe_num;
};
struct qmi_wlanfw_shadow_reg_cfg_s_v01 {
--
2.43.0
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